We now can think of appealing to Lemma 4.4. page 61 in [1]}: Suppose that a function \(u \ge 0\)  satisfies for all \(y \in K_\rho \)
\( \int _{K_\rho } \vert x-y\vert ^{-N+m-\alpha /2}u^m \le C \rho ^{\alpha /2}\) 
